--- product_id: 367475894 title: "720 PCS Black Ratio 2:1 Heat Shrink Tubing Kit with Box, 8 Sizes" brand: "koowin" price: "$28.70" currency: USD in_stock: true reviews_count: 9 category: "Koowin" url: https://www.desertcart.us/products/367475894-720-pcs-black-ratio-2-1-heat-shrink-tubing-kit store_origin: US region: United States of America --- # 600V electrical insulation 2:1 shrink ratio halves diameter Shrinks fast at 84-120°C 720 PCS Black Ratio 2:1 Heat Shrink Tubing Kit with Box, 8 Sizes **Brand:** koowin **Price:** $28.70 **Availability:** ✅ In Stock ## Summary > 🔥 Shrink it, seal it, secure it — pro-grade wire protection in your hands! ## Quick Answers - **What is this?** 720 PCS Black Ratio 2:1 Heat Shrink Tubing Kit with Box, 8 Sizes by koowin - **How much does it cost?** $28.70 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/367475894-720-pcs-black-ratio-2-1-heat-shrink-tubing-kit) ## Best For - koowin enthusiasts ## Why This Product - Trusted koowin brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Operates from -55°C to 125°C, tough in any environment - • **Organized & Ready:** Compact plastic box keeps your kit neat and accessible - • **Quick & Easy Application:** Low shrink temp means fast, hassle-free heat gun use - • **Ultimate Wire Protection:** High voltage resistance and corrosion-proof polyolefin material - • **Precision Fit, Every Time:** 720 pieces across 8 sizes for perfect wire coverage ## Overview The KOOWIN 720 PCS Heat Shrink Tubing Kit offers a versatile 2:1 shrink ratio with 8 size options, delivering reliable electrical insulation up to 600V and temperature resistance from -55°C to 125°C. Packaged in a compact box, this polyolefin tubing kit is designed for quick, efficient application with a low shrink temperature, making it ideal for professional-grade wire protection and DIY projects alike. ## Description desertcart.com: KOOWIN 720 PCS Black Ratio 2:1 Heat Shrink Tubing Kit with Box, 8 Sizes | Assorted Sizes Heat Shrink Tubes Wire Wrap, Polyolefin Electrical Cable Wire Kit Sleeve Assortment, Insulation Protection : Industrial & Scientific Review: Great and easy to use - Used it to put lights on a Halloween costume we made. Easy to use and works great. Takes very little heat to make it adhere. Awesome it works so well and so quickly Review: A lot of smaller sizes - Would like to have more of the bigger pieces , but good assortment for the price ## Features - 【Product Parameter】High Quality Shrinkage Ratio: 2:1(will shrink to 1/2 its supplied diameter), Operating Temperature: -55°C to 125°C, Shrink Temperature: 84℃-120℃, Withstand Voltage: 600V - 【Complete Variety】Comes with 720 pcs black heat shrink tube assorted in plastic box, 8 Specifications , satisfied for your different need, The heat shrinkable tube with a length of 1-9/16 inch has a diameter of Φ3/64" (1MM) 160 PCS, Φ5/64" (2MM) 120 PCS, Φ1/8" (3MM) 120 PCS, Φ5/32" (4MM) 90 PCS, Φ13/64" (5MM) 60 PCS, Φ15/64" (6MM) 50 PCS, Φ5/16" (8MM) 60 PCS, Φ25/64" (10MM) 60 PCS. - 【Multifunctional & DIY assistant】There are many sizes of high-quality heat shrinkable tubes for you to choose, they can be used for solder joint protection, wire group marking, resistance and capacitance cause protection, etc. - 【Easy to Use】 This heat shrinkable tube has good electrical insulation, corrosion resistance and high temperature resistance. Soft and soft wire shrink sleeve, low shrink temperature-minimum shrink temperature: 84°C, fast shrinkage, easy to use heat gun - 【30-Day Refund】All customers enjoy 30-day refund & one-year warranty service. If the customer is not satisfied with the purchase for any reason, the product can be returned or refunded. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B098LB9LTJ | | Best Sellers Rank | #127,949 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #334 in Industrial Heat-Shrink Tubing | | Brand | KOOWIN | | Color | black | | Customer Reviews | 4.6 out of 5 stars 1,360 Reviews | | Enclosure Material | Polyolefin | | Installation Type | Self-Adhesive | | Manufacturer | KOOWIN | | Material | Polyolefin | | Mfr Part Number | 1 | | Model Number | 1 | | Number of Pieces | 720 | | Style | Compact | | Style Name | Compact | | UPC | 717675601646 | | Unit Count | 1 Count | ## Product Details - **Brand:** KOOWIN - **Color:** black - **Material:** Polyolefin - **Style:** Compact - **Installation Type:** Self-Adhesive ## Images ![720 PCS Black Ratio 2:1 Heat Shrink Tubing Kit with Box, 8 Sizes - Image 1](https://m.media-amazon.com/images/I/61Am818nooL.jpg) ## Questions & Answers **Q: Can this product be split lengthwise to wrap around a cable then heat shrunk?** A: No. I've tried that; it simply shrinks in all dimensions and so the 2 cut sides pull away from each other. The only sure way to make it work, and it does work really well, is to slip the tube on to the wire before soldering or attaching a terminal. I have had some luck slipping a larger sized tubing over a terminal and then heat shrinking it, but generally tubing large enough to fit over the terminal is too big to shrink small enough to fit snuggly. **Q: What size wrap to use for 18 awg wire?** A: The kit comes with multiple colors and sizes, before repairing the wire get a shrink sleeve that fits fairly loose. The wraps shrink a lot. Repair , if heat was used on the repair slow the area to cool before sliding the wrap in place and apply heat. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great and easy to use *by P***M on September 30, 2025* Used it to put lights on a Halloween costume we made. Easy to use and works great. Takes very little heat to make it adhere. Awesome it works so well and so quickly ### ⭐⭐⭐⭐⭐ A lot of smaller sizes *by C***E on April 12, 2026* Would like to have more of the bigger pieces , but good assortment for the price ### ⭐⭐⭐⭐⭐ Great Variety and Quality *by Q***O on November 27, 2024* I love the wide variety of sizes and colors, making it perfect for all sorts of projects. Whether you’re working with wires, cables, or even small repairs, this kit has everything you need. The quality is great too—each piece shrinks evenly and securely. Highly recommend it for anyone who does a lot of DIY or electrical work! ## Frequently Bought Together - 720 PCS Heat Shrink Tubing Kit, Heat Shrink Tubes Wire Wrap, KOOWIN Ratio 2:1 Electrical Cable Wire Kit Sleeve Assortment with Box Set Insulation Protection (8 Sizes Assorted, Polyolefin Black) - Kuject Heat Shrink Solder Seal Wire Connectors Kit 120PCS, Waterproof Butt Connector Heat Shrink Electrical Terminals, Insulated Solderless Wiring Splice Connectors for Marine Automotive Boat Truck - DC Converter 24V to 12V 5A 60W, Voltage Converter Step Up DC Power Adapter Converter Waterproof Heavy Duty Transformer for Car Truck Vehicle Boat Motor Solar System --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/367475894-720-pcs-black-ratio-2-1-heat-shrink-tubing-kit](https://www.desertcart.us/products/367475894-720-pcs-black-ratio-2-1-heat-shrink-tubing-kit) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-12*